Implement parameters subsystem

* Unified parameters storage.
* Store parameters in flash on the hardware.
* Store parameters in text file in simulation.
* Work with parameters in command line.
* Support parameters in MAVLink for working with parameters in QGC.

flix/flix.ino

@@ -41,6 +41,7 @@ void setup() {
 	Serial.begin(SERIAL_BAUDRATE);
 	Serial.println("Initializing flix");
 	disableBrownOut();
+	setupParameters();
 	setupLED();
 	setupMotors();
 	setLED(true);
@@ -66,4 +67,5 @@ void loop() {
 	processMavlink();
 #endif
 	logData();
+	flushParameters();
 }